Greetings from the Florida Keys. Of all the great values one can find, your Offshore Cruising Encyclopedia is the best. We have used your book as a wonderful resource to guide our steps and now are the proud, and deliriously happy owners of a 45′ Columbia. An older boat, she is quite sound, needing only a lot of “elbow grease” and some electronics. We were fascinated by the application of ground walnut shells to teak saloon floors for a non-skid, good looking flooring (page 1034). Is there a supply source for the shells, or did you render them yourself? Thanks, Janine M.